To go 17'' or 18''? I can't decide.

For the amuse widebody, i guess it's been established that the wheel fitment is:
18x10.5 +18 all around.

My friend and I had a discussion about how heavy that would be with tires wrapped around it as well, especially for a stock motor. He suggested that I stay 17'' - which will in return allow me to save some money on tires as well.

I wasn't sure whether to post this in the r&C forums. This car will be tracked.

what would some of you guys do as far as choosing between a 17'' and 18''? and the reasoning behind it would be nice

thanks

 

nvm, i already ordered the 18x10.5
If i'm too slow, i'll just turbo it.